Nonlinear Beamforming for Multiple-Antenna Assisted QPSK Wireless Systems

Chen, S., Hanzo, L. and Tan, S. (2008) Nonlinear Beamforming for Multiple-Antenna Assisted QPSK Wireless Systems At IEEE ICC'08, China. 19 - 23 May 2008. , pp. 4230-4234.


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A nonlinear beamforming aided detector is proposed for multiple-antenna assisted quadrature phase shift keying systems. By exploiting the inherent symmetry of the optimal Bayesian detection solution, a symmetric radial basis function (SRBF) detector is developed which is capable of approaching the optimal Bayesian performance using channel-impaired training data. In the uplink case, adaptive nonlinear beamforming can be implemented effectively by estimating the channel matrix based on the least squares channel estimate. Adaptive implementation of nonlinear beamforming in the downlink case by contrast is much more challenging, and we adopt a cluster-variation enhanced clustering algorithm to directly identify the SRBF centre vectors required for realising the optimal Bayesian detector.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 19-23 May 2008
Venue - Dates: IEEE ICC'08, China, 2008-05-19 - 2008-05-23
Organisations: Southampton Wireless Group
ePrint ID: 265792
Date :
Date Event
May 2008Published
Date Deposited: 27 May 2008 12:20
Last Modified: 17 Apr 2017 19:13
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